Where can you find handshakes, business cards, liquor shots, and arguments about legalized marijuana and gun control all in one place? The annual "Chamber Train."

Thursday was the New Jersey Chamber of Commerce's 81st "Walk to Washington," in which an eclectic group of lawmakers, lobbyists, and business executives packed 13 train cars that barreled toward Washington D.C. for a dinner with Gov. Phil Murphy and the state's members of Congress. It's one of the Garden State's weirdest political traditions.

So what did you miss if you weren't on board this year? Here's a look at the hot topics and what Murphy had to say about the upcoming state budget:

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Photo Aristide Economopoulos | NJ Advance Media for NJ.com

1. Legal pot is still not a slam dunk.

Murphy, who took over for Republican Chris Christie last month, campaigned on bringing legal marijuana to New Jersey. But six weeks into his tenure, many lawmakers — Republicans and Democrats alike — either are against it or remain undecided on how they'd vote.

In the wake of last month's Parkland school shooting, President Donald Trump said he'd be open to having teachers who are trained with weapons to carry firearms in the classroom.

But many of his fellow Republicans in New Jersey — a blue state where polls show Trump is unpopular — aren’t sure of the idea.

"People with extreme training, that's one thing," Assemblywoman Holly Schepisi, R-Bergen, said. "But knowing how to shoot a weapon at a range is different from having to utilize one in combat."

Assemblyman Anthony Bucco, R-Morris, said he's open to trained teachers having guns, but "a concern is how law enforcement would be able to differentiate between a bad guy and a good guy" during a shooting.

Bob Hugin, who is running for the Republican nomination to challenge Democratic U.S. Sen. Robert Menendez, in November, said "schools need to be a safe place" but added that "the local community should make the decision on what's best for them."

Kean was also blunt about two key issues circulating around the train.

On legal pot: “I don’t like it, personally. Normally, I’m very Libertarian. But I worry about marijuana and driving. They’re not sure if it’s a gateway drug or not.”

And on arming teachers: “I’m a former teacher. I would have never carried a gun.”

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State Sen. Ron Rice sits next to Assemblywoman Angela McKnight while on the train.

Photo by Aristide Economopoulos | NJ Advance Media for NJ.com

4. Murphy doubled down on the millionaires tax.

Murphy's speech came less than two weeks before the new governor is scheduled to unveil his first state budget in a March 13 address. On Thursday night, he gave a preview of what could be one of its biggest facets.

Christie, who spoke many times at the dinner over the last eight years, wasn't on hand Thursday. But Menendez joked about the former governor while praising the new governor during the dinner.

"You haven’t screamed at a teacher yet and you haven’t closed a bridge," the U.S. senator, a fellow Democrat, said of Murphy.

To be fair, Christie never publicly criticized Menendez during the senator's corruption trial last year — which ended in mistral when jurors couldn't agree on a verdict. The U.S. Justice Department later dropped charges against Menendez.

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Photo by Aristide Economopoulos | NJ Advance Media for NJ.com

6. Booker talked up millennials.

The Garden State's other Democratic U.S. senator, Cory Booker, also spoke at the dinner — amid ever-swirling rumors that he may run for president in 2020.

In his speech, Booker said the state needs to curb what he described as an alarming trend: millennials moving away.

Booker called on the crowd to “think about ways we can work together to improve our state and ensure we won’t be a state that loses our lifeblood, loses our grip on the future.”